chore: complete initial setup for Next.js project with TypeScript, Tailwind CSS, ESLint, and Prettier; remove unnecessary .DS_Store file

.gitignore

@@ -0,0 +1,41 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/versions
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# env files (can opt-in for committing if needed)
+.env*
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

.prettierignore

@@ -0,0 +1,6 @@
+node_modules
+.next
+dist
+build
+*.min.js
+

.prettierrc

@@ -0,0 +1,9 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "es5",
+  "printWidth": 100,
+  "plugins": []
+}
+

README.md

@@ -0,0 +1,36 @@
+This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+# or
+pnpm dev
+# or
+bun dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+
+This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
+
+## Learn More
+
+To learn more about Next.js, take a look at the following resources:
+
+- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
+- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+
+You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome!
+
+## Deploy on Vercel
+
+The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.

devbook.md

@@ -15,10 +15,10 @@ Application de gestion d'ateliers SWOT pour entretiens managériaux.
 
 ## Phase 1 : Setup Initial
 
-- [ ] Initialiser Next.js 15 avec TypeScript
-- [ ] Configurer Tailwind CSS avec le système de CSS Variables
-- [ ] Setup ESLint + Prettier
-- [ ] Créer la structure de dossiers
+- [x] Initialiser Next.js 15 avec TypeScript
+- [x] Configurer Tailwind CSS avec le système de CSS Variables
+- [x] Setup ESLint + Prettier
+- [x] Créer la structure de dossiers
   ```
   src/
   ├── app/
@@ -39,7 +39,7 @@ Application de gestion d'ateliers SWOT pour entretiens managériaux.
   ├── contexts/         # React Contexts
   └── actions/          # Server Actions
   ```
-- [ ] Configurer les CSS Variables pour le theming (light/dark)
+- [x] Configurer les CSS Variables pour le theming (light/dark)
 
 ---
 

eslint.config.mjs

@@ -0,0 +1,20 @@
+import { defineConfig, globalIgnores } from 'eslint/config';
+import nextVitals from 'eslint-config-next/core-web-vitals';
+import nextTs from 'eslint-config-next/typescript';
+import prettier from 'eslint-config-prettier';
+
+const eslintConfig = defineConfig([
+  ...nextVitals,
+  ...nextTs,
+  prettier,
+  // Override default ignores of eslint-config-next.
+  globalIgnores([
+    // Default ignores of eslint-config-next:
+    '.next/**',
+    'out/**',
+    'build/**',
+    'next-env.d.ts',
+  ]),
+]);
+
+export default eslintConfig;

next.config.ts

@@ -0,0 +1,7 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  /* config options here */
+};
+
+export default nextConfig;

package.json

@@ -0,0 +1,28 @@
+{
+  "name": "swot-manager",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "eslint"
+  },
+  "dependencies": {
+    "next": "16.0.5",
+    "react": "19.2.0",
+    "react-dom": "19.2.0"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4",
+    "@types/node": "^20",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
+    "eslint": "^9",
+    "eslint-config-next": "16.0.5",
+    "eslint-config-prettier": "^10.1.8",
+    "prettier": "^3.7.1",
+    "tailwindcss": "^4",
+    "typescript": "^5"
+  }
+}

postcss.config.mjs

@@ -0,0 +1,7 @@
+const config = {
+  plugins: {
+    "@tailwindcss/postcss": {},
+  },
+};
+
+export default config;

public/file.svg

@@ -0,0 +1 @@
+<svg fill="none" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="M14.5 13.5V5.41a1 1 0 0 0-.3-.7L9.8.29A1 1 0 0 0 9.08 0H1.5v13.5A2.5 2.5 0 0 0 4 16h8a2.5 2.5 0 0 0 2.5-2.5m-1.5 0v-7H8v-5H3v12a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1M9.5 5V2.12L12.38 5zM5.13 5h-.62v1.25h2.12V5zm-.62 3h7.12v1.25H4.5zm.62 3h-.62v1.25h7.12V11z" clip-rule="evenodd" fill="#666" fill-rule="evenodd"/></svg>

public/globe.svg

@@ -0,0 +1 @@
+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><g clip-path="url(#a)"><path fill-rule="evenodd" clip-rule="evenodd" d="M10.27 14.1a6.5 6.5 0 0 0 3.67-3.45q-1.24.21-2.7.34-.31 1.83-.97 3.1M8 16A8 8 0 1 0 8 0a8 8 0 0 0 0 16m.48-1.52a7 7 0 0 1-.96 0H7.5a4 4 0 0 1-.84-1.32q-.38-.89-.63-2.08a40 40 0 0 0 3.92 0q-.25 1.2-.63 2.08a4 4 0 0 1-.84 1.31zm2.94-4.76q1.66-.15 2.95-.43a7 7 0 0 0 0-2.58q-1.3-.27-2.95-.43a18 18 0 0 1 0 3.44m-1.27-3.54a17 17 0 0 1 0 3.64 39 39 0 0 1-4.3 0 17 17 0 0 1 0-3.64 39 39 0 0 1 4.3 0m1.1-1.17q1.45.13 2.69.34a6.5 6.5 0 0 0-3.67-3.44q.65 1.26.98 3.1M8.48 1.5l.01.02q.41.37.84 1.31.38.89.63 2.08a40 40 0 0 0-3.92 0q.25-1.2.63-2.08a4 4 0 0 1 .85-1.32 7 7 0 0 1 .96 0m-2.75.4a6.5 6.5 0 0 0-3.67 3.44 29 29 0 0 1 2.7-.34q.31-1.83.97-3.1M4.58 6.28q-1.66.16-2.95.43a7 7 0 0 0 0 2.58q1.3.27 2.95.43a18 18 0 0 1 0-3.44m.17 4.71q-1.45-.12-2.69-.34a6.5 6.5 0 0 0 3.67 3.44q-.65-1.27-.98-3.1" fill="#666"/></g><defs><clipPath id="a"><path fill="#fff" d="M0 0h16v16H0z"/></clipPath></defs></svg>

public/next.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 394 80"><path fill="#000" d="M262 0h68.5v12.7h-27.2v66.6h-13.6V12.7H262V0ZM149 0v12.7H94v20.4h44.3v12.6H94v21h55v12.6H80.5V0h68.7zm34.3 0h-17.8l63.8 79.4h17.9l-32-39.7 32-39.6h-17.9l-23 28.6-23-28.6zm18.3 56.7-9-11-27.1 33.7h17.8l18.3-22.7z"/><path fill="#000" d="M81 79.3 17 0H0v79.3h13.6V17l50.2 62.3H81Zm252.6-.4c-1 0-1.8-.4-2.5-1s-1.1-1.6-1.1-2.6.3-1.8 1-2.5 1.6-1 2.6-1 1.8.3 2.5 1a3.4 3.4 0 0 1 .6 4.3 3.7 3.7 0 0 1-3 1.8zm23.2-33.5h6v23.3c0 2.1-.4 4-1.3 5.5a9.1 9.1 0 0 1-3.8 3.5c-1.6.8-3.5 1.3-5.7 1.3-2 0-3.7-.4-5.3-1s-2.8-1.8-3.7-3.2c-.9-1.3-1.4-3-1.4-5h6c.1.8.3 1.6.7 2.2s1 1.2 1.6 1.5c.7.4 1.5.5 2.4.5 1 0 1.8-.2 2.4-.6a4 4 0 0 0 1.6-1.8c.3-.8.5-1.8.5-3V45.5zm30.9 9.1a4.4 4.4 0 0 0-2-3.3 7.5 7.5 0 0 0-4.3-1.1c-1.3 0-2.4.2-3.3.5-.9.4-1.6 1-2 1.6a3.5 3.5 0 0 0-.3 4c.3.5.7.9 1.3 1.2l1.8 1 2 .5 3.2.8c1.3.3 2.5.7 3.7 1.2a13 13 0 0 1 3.2 1.8 8.1 8.1 0 0 1 3 6.5c0 2-.5 3.7-1.5 5.1a10 10 0 0 1-4.4 3.5c-1.8.8-4.1 1.2-6.8 1.2-2.6 0-4.9-.4-6.8-1.2-2-.8-3.4-2-4.5-3.5a10 10 0 0 1-1.7-5.6h6a5 5 0 0 0 3.5 4.6c1 .4 2.2.6 3.4.6 1.3 0 2.5-.2 3.5-.6 1-.4 1.8-1 2.4-1.7a4 4 0 0 0 .8-2.4c0-.9-.2-1.6-.7-2.2a11 11 0 0 0-2.1-1.4l-3.2-1-3.8-1c-2.8-.7-5-1.7-6.6-3.2a7.2 7.2 0 0 1-2.4-5.7 8 8 0 0 1 1.7-5 10 10 0 0 1 4.3-3.5c2-.8 4-1.2 6.4-1.2 2.3 0 4.4.4 6.2 1.2 1.8.8 3.2 2 4.3 3.4 1 1.4 1.5 3 1.5 5h-5.8z"/></svg>

public/vercel.svg

@@ -0,0 +1 @@
+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1155 1000"><path d="m577.3 0 577.4 1000H0z" fill="#fff"/></svg>

public/window.svg

@@ -0,0 +1 @@
+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill-rule="evenodd" clip-rule="evenodd" d="M1.5 2.5h13v10a1 1 0 0 1-1 1h-11a1 1 0 0 1-1-1zM0 1h16v11.5a2.5 2.5 0 0 1-2.5 2.5h-11A2.5 2.5 0 0 1 0 12.5zm3.75 4.5a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5M7 4.75a.75.75 0 1 1-1.5 0 .75.75 0 0 1 1.5 0m1.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5" fill="#666"/></svg>

src/app/globals.css

@@ -0,0 +1,194 @@
+@import 'tailwindcss';
+
+/* ============================================
+   SWOT Manager - CSS Variables Theme System
+   ============================================ */
+
+:root {
+  /* Background & Foreground */
+  --background: #f8fafc;
+  --foreground: #0f172a;
+
+  /* Cards & Surfaces */
+  --card: #ffffff;
+  --card-hover: #f1f5f9;
+  --card-border: #e2e8f0;
+
+  /* Primary - Cyan/Teal */
+  --primary: #0891b2;
+  --primary-hover: #0e7490;
+  --primary-foreground: #ffffff;
+
+  /* SWOT Quadrant Colors */
+  --strength: #059669;
+  --strength-bg: #ecfdf5;
+  --strength-border: #a7f3d0;
+
+  --weakness: #dc2626;
+  --weakness-bg: #fef2f2;
+  --weakness-border: #fecaca;
+
+  --opportunity: #2563eb;
+  --opportunity-bg: #eff6ff;
+  --opportunity-border: #bfdbfe;
+
+  --threat: #d97706;
+  --threat-bg: #fffbeb;
+  --threat-border: #fde68a;
+
+  /* Accent Colors */
+  --accent: #8b5cf6;
+  --accent-hover: #7c3aed;
+
+  /* Status */
+  --success: #059669;
+  --warning: #d97706;
+  --destructive: #dc2626;
+
+  /* Neutral */
+  --muted: #64748b;
+  --muted-foreground: #94a3b8;
+  --border: #e2e8f0;
+  --input: #f1f5f9;
+  --input-border: #cbd5e1;
+
+  /* Focus Ring */
+  --ring: #0891b2;
+
+  /* Shadows */
+  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
+  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
+  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
+  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
+
+  /* Border Radius */
+  --radius-sm: 0.375rem;
+  --radius: 0.5rem;
+  --radius-lg: 0.75rem;
+  --radius-xl: 1rem;
+}
+
+.dark {
+  /* Background & Foreground */
+  --background: #0f172a;
+  --foreground: #f1f5f9;
+
+  /* Cards & Surfaces */
+  --card: #1e293b;
+  --card-hover: #334155;
+  --card-border: #334155;
+
+  /* Primary - Cyan/Teal */
+  --primary: #06b6d4;
+  --primary-hover: #22d3ee;
+  --primary-foreground: #0f172a;
+
+  /* SWOT Quadrant Colors - Dark Mode */
+  --strength: #10b981;
+  --strength-bg: #064e3b;
+  --strength-border: #047857;
+
+  --weakness: #ef4444;
+  --weakness-bg: #450a0a;
+  --weakness-border: #991b1b;
+
+  --opportunity: #3b82f6;
+  --opportunity-bg: #1e3a5f;
+  --opportunity-border: #1d4ed8;
+
+  --threat: #f59e0b;
+  --threat-bg: #451a03;
+  --threat-border: #b45309;
+
+  /* Accent Colors */
+  --accent: #a78bfa;
+  --accent-hover: #c4b5fd;
+
+  /* Status */
+  --success: #10b981;
+  --warning: #f59e0b;
+  --destructive: #ef4444;
+
+  /* Neutral */
+  --muted: #94a3b8;
+  --muted-foreground: #64748b;
+  --border: #334155;
+  --input: #1e293b;
+  --input-border: #475569;
+
+  /* Focus Ring */
+  --ring: #06b6d4;
+
+  /* Shadows - Dark Mode */
+  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
+  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.4), 0 1px 2px -1px rgb(0 0 0 / 0.4);
+  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
+  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
+}
+
+@theme inline {
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --color-card: var(--card);
+  --color-card-hover: var(--card-hover);
+  --color-card-border: var(--card-border);
+  --color-primary: var(--primary);
+  --color-primary-hover: var(--primary-hover);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-strength: var(--strength);
+  --color-strength-bg: var(--strength-bg);
+  --color-strength-border: var(--strength-border);
+  --color-weakness: var(--weakness);
+  --color-weakness-bg: var(--weakness-bg);
+  --color-weakness-border: var(--weakness-border);
+  --color-opportunity: var(--opportunity);
+  --color-opportunity-bg: var(--opportunity-bg);
+  --color-opportunity-border: var(--opportunity-border);
+  --color-threat: var(--threat);
+  --color-threat-bg: var(--threat-bg);
+  --color-threat-border: var(--threat-border);
+  --color-accent: var(--accent);
+  --color-accent-hover: var(--accent-hover);
+  --color-success: var(--success);
+  --color-warning: var(--warning);
+  --color-destructive: var(--destructive);
+  --color-muted: var(--muted);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-border: var(--border);
+  --color-input: var(--input);
+  --color-input-border: var(--input-border);
+  --color-ring: var(--ring);
+  --font-sans: var(--font-geist-sans);
+  --font-mono: var(--font-geist-mono);
+}
+
+body {
+  background: var(--background);
+  color: var(--foreground);
+  font-family: var(--font-sans), system-ui, sans-serif;
+}
+
+/* Focus styles */
+*:focus-visible {
+  outline: 2px solid var(--ring);
+  outline-offset: 2px;
+}
+
+/* Custom scrollbar */
+::-webkit-scrollbar {
+  width: 8px;
+  height: 8px;
+}
+
+::-webkit-scrollbar-track {
+  background: var(--background);
+}
+
+::-webkit-scrollbar-thumb {
+  background: var(--muted-foreground);
+  border-radius: 4px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background: var(--muted);
+}

src/app/layout.tsx

@@ -0,0 +1,33 @@
+import type { Metadata } from 'next';
+import { Geist, Geist_Mono } from 'next/font/google';
+import './globals.css';
+import { Providers } from '@/components/Providers';
+
+const geistSans = Geist({
+  variable: '--font-geist-sans',
+  subsets: ['latin'],
+});
+
+const geistMono = Geist_Mono({
+  variable: '--font-geist-mono',
+  subsets: ['latin'],
+});
+
+export const metadata: Metadata = {
+  title: 'SWOT Manager',
+  description: "Application de gestion d'ateliers SWOT pour entretiens managériaux",
+};
+
+export default function RootLayout({
+  children,
+}: Readonly<{
+  children: React.ReactNode;
+}>) {
+  return (
+    <html lang="fr" suppressHydrationWarning>
+      <body className={`${geistSans.variable} ${geistMono.variable} antialiased`}>
+        <Providers>{children}</Providers>
+      </body>
+    </html>
+  );
+}

src/app/page.tsx

@@ -0,0 +1,101 @@
+import Link from 'next/link';
+
+export default function Home() {
+  return (
+    <>
+      <main className="mx-auto max-w-7xl px-4 py-12">
+        {/* Hero Section */}
+        <section className="mb-16 text-center">
+          <h1 className="mb-4 text-5xl font-bold text-foreground">
+            Analysez. Planifiez. <span className="text-primary">Progressez.</span>
+          </h1>
+          <p className="mx-auto mb-8 max-w-2xl text-lg text-muted">
+            Créez des ateliers SWOT interactifs avec vos collaborateurs. Identifiez les forces,
+            faiblesses, opportunités et menaces, puis définissez ensemble une roadmap
+            d&apos;actions concrètes.
+          </p>
+          <Link
+            href="/sessions/new"
+            className="inline-flex items-center gap-2 rounded-lg bg-primary px-6 py-3 text-lg font-semibold text-primary-foreground transition-colors hover:bg-primary-hover"
+          >
+            <span>✨</span>
+            Nouvelle Session SWOT
+          </Link>
+        </section>
+
+        {/* Features Grid */}
+        <section className="mb-16">
+          <h2 className="mb-8 text-center text-2xl font-bold text-foreground">
+            Comment ça marche ?
+          </h2>
+          <div className="grid gap-6 md:grid-cols-2 lg:grid-cols-4">
+            {/* Strength */}
+            <div className="rounded-xl border border-strength-border bg-strength-bg p-6">
+              <div className="mb-3 text-3xl">💪</div>
+              <h3 className="mb-2 text-lg font-semibold text-strength">Forces</h3>
+              <p className="text-sm text-muted">
+                Les atouts et compétences sur lesquels s&apos;appuyer pour progresser.
+              </p>
+            </div>
+
+            {/* Weakness */}
+            <div className="rounded-xl border border-weakness-border bg-weakness-bg p-6">
+              <div className="mb-3 text-3xl">⚠️</div>
+              <h3 className="mb-2 text-lg font-semibold text-weakness">Faiblesses</h3>
+              <p className="text-sm text-muted">
+                Les axes d&apos;amélioration et points de vigilance à travailler.
+              </p>
+            </div>
+
+            {/* Opportunity */}
+            <div className="rounded-xl border border-opportunity-border bg-opportunity-bg p-6">
+              <div className="mb-3 text-3xl">🚀</div>
+              <h3 className="mb-2 text-lg font-semibold text-opportunity">Opportunités</h3>
+              <p className="text-sm text-muted">
+                Les occasions de développement et de croissance à saisir.
+              </p>
+            </div>
+
+            {/* Threat */}
+            <div className="rounded-xl border border-threat-border bg-threat-bg p-6">
+              <div className="mb-3 text-3xl">🛡️</div>
+              <h3 className="mb-2 text-lg font-semibold text-threat">Menaces</h3>
+              <p className="text-sm text-muted">
+                Les risques et obstacles potentiels à anticiper.
+              </p>
+            </div>
+          </div>
+        </section>
+
+        {/* Cross Actions Section */}
+        <section className="rounded-2xl border border-border bg-card p-8 text-center">
+          <h2 className="mb-4 text-2xl font-bold text-foreground">🔗 Actions Croisées</h2>
+          <p className="mx-auto mb-6 max-w-2xl text-muted">
+            La puissance du SWOT réside dans le croisement des catégories. Liez vos forces à vos
+            opportunités, anticipez les menaces avec vos atouts, et transformez vos faiblesses en
+            axes de progression.
+          </p>
+          <div className="flex flex-wrap justify-center gap-3">
+            <span className="rounded-full border border-strength-border bg-strength-bg px-4 py-2 text-sm font-medium text-strength">
+              S + O → Maximiser
+            </span>
+            <span className="rounded-full border border-threat-border bg-threat-bg px-4 py-2 text-sm font-medium text-threat">
+              S + T → Protéger
+            </span>
+            <span className="rounded-full border border-opportunity-border bg-opportunity-bg px-4 py-2 text-sm font-medium text-opportunity">
+              W + O → Améliorer
+            </span>
+            <span className="rounded-full border border-weakness-border bg-weakness-bg px-4 py-2 text-sm font-medium text-weakness">
+              W + T → Surveiller
+            </span>
+          </div>
+        </section>
+      </main>
+
+      {/* Footer */}
+      <footer className="border-t border-border py-6 text-center text-sm text-muted">
+        SWOT Manager — Outil d&apos;entretiens managériaux
+      </footer>
+    </>
+  );
+}

src/components/Providers.tsx

@@ -0,0 +1,20 @@
+'use client';
+
+import { ThemeProvider } from '@/contexts/ThemeContext';
+import { Header } from '@/components/layout/Header';
+import { ReactNode } from 'react';
+
+interface ProvidersProps {
+  children: ReactNode;
+}
+
+export function Providers({ children }: ProvidersProps) {
+  return (
+    <ThemeProvider>
+      <div className="min-h-screen bg-background">
+        <Header />
+        {children}
+      </div>
+    </ThemeProvider>
+  );
+}

src/components/layout/Header.tsx

@@ -0,0 +1,37 @@
+'use client';
+
+import Link from 'next/link';
+import { useTheme } from '@/contexts/ThemeContext';
+
+export function Header() {
+  const { theme, toggleTheme } = useTheme();
+
+  return (
+    <header className="sticky top-0 z-50 border-b border-border bg-card/80 backdrop-blur-sm">
+      <div className="mx-auto flex h-16 max-w-7xl items-center justify-between px-4">
+        <Link href="/" className="flex items-center gap-2">
+          <span className="text-2xl">📊</span>
+          <span className="text-xl font-bold text-foreground">SWOT Manager</span>
+        </Link>
+
+        <nav className="flex items-center gap-4">
+          <Link
+            href="/sessions"
+            className="text-muted transition-colors hover:text-foreground"
+          >
+            Mes Sessions
+          </Link>
+
+          <button
+            onClick={toggleTheme}
+            className="flex h-9 w-9 items-center justify-center rounded-lg border border-border bg-card text-lg transition-colors hover:bg-card-hover"
+            aria-label="Toggle theme"
+          >
+            {theme === 'light' ? '🌙' : '☀️'}
+          </button>
+        </nav>
+      </div>
+    </header>
+  );
+}
+

src/contexts/ThemeContext.tsx

@@ -0,0 +1,59 @@
+'use client';
+
+import { createContext, useContext, useEffect, useState, ReactNode, useCallback } from 'react';
+
+type Theme = 'light' | 'dark';
+
+interface ThemeContextType {
+  theme: Theme;
+  setTheme: (theme: Theme) => void;
+  toggleTheme: () => void;
+}
+
+const ThemeContext = createContext<ThemeContextType | null>(null);
+
+function getInitialTheme(): Theme {
+  if (typeof window === 'undefined') return 'light';
+
+  const stored = localStorage.getItem('theme') as Theme | null;
+  if (stored) return stored;
+
+  return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
+}
+
+interface ThemeProviderProps {
+  children: ReactNode;
+}
+
+export function ThemeProvider({ children }: ThemeProviderProps) {
+  const [theme, setThemeState] = useState<Theme>(getInitialTheme);
+
+  useEffect(() => {
+    const root = document.documentElement;
+    root.classList.remove('light', 'dark');
+    root.classList.add(theme);
+    localStorage.setItem('theme', theme);
+  }, [theme]);
+
+  const setTheme = useCallback((newTheme: Theme) => {
+    setThemeState(newTheme);
+  }, []);
+
+  const toggleTheme = useCallback(() => {
+    setThemeState((prev) => (prev === 'light' ? 'dark' : 'light'));
+  }, []);
+
+  return (
+    <ThemeContext.Provider value={{ theme, setTheme, toggleTheme }}>
+      {children}
+    </ThemeContext.Provider>
+  );
+}
+
+export function useTheme() {
+  const context = useContext(ThemeContext);
+  if (context === null) {
+    throw new Error('useTheme must be used within a ThemeProvider');
+  }
+  return context;
+}

src/lib/types.ts

@@ -0,0 +1,154 @@
+// ============================================
+// SWOT Manager - Type Definitions
+// ============================================
+
+export type SwotCategory = 'STRENGTH' | 'WEAKNESS' | 'OPPORTUNITY' | 'THREAT';
+
+export type ActionStatus = 'todo' | 'in_progress' | 'done';
+
+export type ActionPriority = 0 | 1 | 2; // 0=low, 1=medium, 2=high
+
+export interface User {
+  id: string;
+  email: string;
+  name: string | null;
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+export interface Session {
+  id: string;
+  title: string;
+  collaborator: string;
+  date: Date;
+  userId: string;
+  items: SwotItem[];
+  actions: Action[];
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+export interface SwotItem {
+  id: string;
+  content: string;
+  category: SwotCategory;
+  order: number;
+  sessionId: string;
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+export interface Action {
+  id: string;
+  title: string;
+  description: string | null;
+  priority: ActionPriority;
+  status: ActionStatus;
+  dueDate: Date | null;
+  sessionId: string;
+  links: ActionLink[];
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+export interface ActionLink {
+  id: string;
+  actionId: string;
+  swotItemId: string;
+}
+
+// ============================================
+// Input Types (for creation/update)
+// ============================================
+
+export interface CreateSessionInput {
+  title: string;
+  collaborator: string;
+  date?: Date;
+}
+
+export interface UpdateSessionInput {
+  title?: string;
+  collaborator?: string;
+  date?: Date;
+}
+
+export interface CreateSwotItemInput {
+  content: string;
+  category: SwotCategory;
+  order?: number;
+}
+
+export interface UpdateSwotItemInput {
+  content?: string;
+  category?: SwotCategory;
+  order?: number;
+}
+
+export interface CreateActionInput {
+  title: string;
+  description?: string;
+  priority?: ActionPriority;
+  status?: ActionStatus;
+  dueDate?: Date;
+  linkedItemIds: string[];
+}
+
+export interface UpdateActionInput {
+  title?: string;
+  description?: string;
+  priority?: ActionPriority;
+  status?: ActionStatus;
+  dueDate?: Date;
+}
+
+// ============================================
+// UI Helper Types
+// ============================================
+
+export interface SwotQuadrantConfig {
+  category: SwotCategory;
+  title: string;
+  icon: string;
+  colorClass: string;
+}
+
+export const SWOT_QUADRANTS: SwotQuadrantConfig[] = [
+  {
+    category: 'STRENGTH',
+    title: 'Forces',
+    icon: '💪',
+    colorClass: 'strength',
+  },
+  {
+    category: 'WEAKNESS',
+    title: 'Faiblesses',
+    icon: '⚠️',
+    colorClass: 'weakness',
+  },
+  {
+    category: 'OPPORTUNITY',
+    title: 'Opportunités',
+    icon: '🚀',
+    colorClass: 'opportunity',
+  },
+  {
+    category: 'THREAT',
+    title: 'Menaces',
+    icon: '🛡️',
+    colorClass: 'threat',
+  },
+];
+
+export const PRIORITY_LABELS: Record<ActionPriority, string> = {
+  0: 'Basse',
+  1: 'Moyenne',
+  2: 'Haute',
+};
+
+export const STATUS_LABELS: Record<ActionStatus, string> = {
+  todo: 'À faire',
+  in_progress: 'En cours',
+  done: 'Terminé',
+};
+

tsconfig.json

@@ -0,0 +1,34 @@
+{
+  "compilerOptions": {
+    "target": "ES2017",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "react-jsx",
+    "incremental": true,
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ],
+    "paths": {
+      "@/*": ["./src/*"]
+    }
+  },
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts",
+    "**/*.mts"
+  ],
+  "exclude": ["node_modules"]
+}